T3-K - Pessières tourbeuses

Picea mire forest

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Open woodland dominated by spruce (Picea abies or P. obovata) on acid peat or around active bogs and poor fens with nutrient-poor ground waters occurring through the boreal zone and locally, where ground conditions permit, in the continental zone.
Remark: Mire forests occurring in ombrotrophic conditions and those occurring in minerotrophic conditions (in fens or at sites influenced by spring water) can be considered as two different habitats characterised by a different floristic composition of the herb layer. This distinction can be seen not only within spruce forests but also within pine forests and larch forests.

Espèces diagnostiques

Sphagnum girgensohnii, Carex globularis, Picea abies, Polytrichum commune, Equisetum sylvaticum, Vaccinium vitis-idaea, Vaccinium myrtillus, Pleurozium schreberi, Betula pubescens, Bazzania trilobata, Hylocomium splendens, Trientalis europaea, Lycopodium annotinum, Sphagnum russowii, Neottia cordata

Espèces constantes

Picea abies, Vaccinium myrtillus, Vaccinium vitis-idaea, Pleurozium schreberi, Hylocomium splendens, Polytrichum commune, Betula pubescens, Sorbus aucuparia, Avenella flexuosa, Pinus sylvestris, Trientalis europaea, Equisetum sylvaticum, Sphagnum girgensohnii, Dicranum scoparium, Maianthemum bifolium, Eriophorum vaginatum, Carex globularis, Vaccinium uliginosum, Rubus chamaemorus, Sphagnum recurvum aggr.

Espèces dominantes

Picea abies, Vaccinium myrtillus, Sphagnum girgensohnii, Sphagnum recurvum aggr., Polytrichum commune, Pleurozium schreberi, Sphagnum capillifolium aggr., Hylocomium splendens

Bibliographie

 European Topic Centre on Biological Diversity, 2021. EUNIS terrestrial habitat classification 2021 including crosswalks. ETC/BD-EEA. Table Excel transmise par S. Hennekens (Alterra) le 14/02/2022. (Source)